canon ip5000 printer error code 5 flashes

I was printing normally when one of the ink cartridges indicated empty so I replaced it. Now indicator light is flashing amber 5 times. This indicates print head not installed but it is. How do I fix it?

2 ANSWERS

A friend of mine faced the similar issue, but was lucky to resolve it, all he did was to open the printer up and move the thing that holds the cartridges to the middle by hand.
You should move the cartridge holder back to the right manually, but carefully - close lid and turn the printer off, then on again.Then carefully move the printer cartridge and shut it down three times, i am sure it will start working again.